a Faculty of Agriculture and Life Sciences , University of Maribor , Pivola 10, 2311 Hoče , Maribor , Slovenia.
Food Addit Contam Part B Surveill. 2012;5(2):93-9. doi: 10.1080/19393210.2012.658873. Epub 2012 Mar 7.
To estimate the actual intake of nitrate by consumption of different lettuce varieties, 52 samples of lettuce of different origins and dandelion from 15 different areas of northeast Slovenia were analysed. For determination of actual nitrate content, a continuous flow method was used. The lowest nitrate content was detected in dandelion, with a mean value of 195 mg kg(-1) (ranging 47-487 mg kg(-1)). Nitrate content in lettuce of different origins ranged 85-3237 mg kg(-1), with a mean value of 1196 mg kg(-1). The mean nitrate content in organically cultivated lettuce was 890 mg kg(-1), which was considerably lower than the nitrate level in conventionally cultivated lettuce (1298 mg kg(-1)). Consumption of 100 g of dandelion would result in a maximal nitrate intake corresponding to 22% of the acceptable daily intake (ADI), with values up to seven times higher for lettuce.
为了估计通过食用不同生菜品种实际摄入的硝酸盐量，对来自斯洛文尼亚东北部 15 个不同地区的 52 份不同来源的生菜和蒲公英样本进行了分析。为了测定实际的硝酸盐含量，采用了连续流动法。在蒲公英中检测到的硝酸盐含量最低，平均值为 195mg/kg（范围为 47-487mg/kg）。不同来源的生菜中的硝酸盐含量范围为 85-3237mg/kg，平均值为 1196mg/kg。有机种植的生菜中的平均硝酸盐含量为 890mg/kg，明显低于常规种植的生菜（1298mg/kg）。食用 100 克蒲公英会导致摄入的硝酸盐最大量相当于可接受日摄入量（ADI）的 22%，而食用生菜的硝酸盐含量最高可达 7 倍。
